Emily Dickenson’s poem This is my letter to the World expresses the poet’s ______ about her communication with the outside world.

A．[j].
B．[tf].
C．[z].
D．[d3].

A．are not necessarily produced as a result of governmental support for military weapons research and development
B．came primarily from the huge laboratories of monopoly industries
C．were produced at least as frequently by independent inventors as by research teams
D．have greater impact on smaller firms than on conglomerates